When to Plant Potatos in Sunnyside, WA

Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Sunnyside can be reviewed to estimate when to plant potatos.


Planting Calendar for Potatos

Frost tolerance for potatos: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

Potatos do well in cold which tells us that you can plant them much earlier than more sensitive plants.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant potatos
Possibly ok, but a risky time to plant potatos
Probably not a good time to plant potatos

The earliest that you can plant potatos in Sunnyside is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant potatos and expect a good harvest is probably September. Any later than that and your potatos may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your potatos indoors.

Last Frost Date

In Sunnyside the average date of last frost happens on April 15. You should expect an average low temperature of 0°F in the coldest months of winter.

Remember that USDA zone info for Sunnyside may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Sunnyside last frost occurs after April 15 be ready to cover your potatos if you have one of those late frosts.

USDA Zone Info for Sunnyside

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low0°F
Highest Expected Low5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in Sunnyside

You may be interested in your other planting guides for Sunnyside.